Insecticidal substituted azinyl derivatives

ABSTRACT

N-Azinyl-N′-aryl ureas and thioureas derivatives are effective at controlling insects.

This application claims the benefit of U.S. Provisional Application Ser. No. 60/998,250 filed on Oct. 9, 2007. This application also claims the benefit of U.S. Non-provisional application Ser. No. 12/239,079 filed on 26 Sep. 2008.

BACKGROUND OF THE INVENTION

The present invention concerns novel N-azinyl-N′-aryl ureas and thioureas and their use in controlling insects, particularly lepidoptera and/or coleoptera. This invention also includes new synthetic procedures, intermediates for preparing the compounds, pesticide compositions containing the compounds, and methods of controlling insects using the compounds.

There is an acute need for new insecticides and acaricides. Insects and mites are developing resistance to the insecticides and acaricides in current use. At least 400 species of arthropods are resistant to one or more insecticides. The development of resistance to some of the older insecticides, such as DDT, the carbamates, and the organophosphates, is well known. But resistance has even developed to some of the newer pyrethroid insecticides and acaricides. Therefore, a need exists for new insecticides and acaricides, and particularly for compounds that have new or atypical modes of action.

The present invention provides novel compounds with broad-spectrum activity against insects, particularly lepidoptera and/or coleoptera.

SUMMARY OF THE INVENTION

This invention concerns compounds useful for the control of insects, especially useful for the control of lepidoptera and/or coleoptera. More specifically, the invention concerns compounds of the formula (I):

-   -   wherein     -   A, B and D represent N, CH or CR³, with the proviso that at         least one of A, B or D are N;     -   R¹ represents C₁-C₄ alkyl optionally substituted with from one         up to the maximum number of fluorine or chlorine atoms;     -   R² represents Cl, CF₃, O(C₁-C₃ alkyl), NH(C₁-C₃ alkyl) or         N(C₁-C₃ alkyl)₂ in which each of the previous C₁-C₃ alkyl groups         is optionally substituted with from one up to the maximum number         of fluorine atoms;     -   R³ represents H, F, Cl, Br, I, C₁-C₃ alkyl or O(C₁-C₃ alkyl) in         which each of the previous C₁-C₃ alkyl groups is optionally         substituted with from one up to the maximum number of fluorine         atoms;     -   R⁴ represents H, C₁-C₃ alkyl (optionally substituted with         alkoxy, benzyloxy or —OC(O)R⁷), or CO₂R⁶;     -   R⁵ represents H, C₁-C₃ alkyl (optionally substituted with C₁-C₃         alkoxy, F, CN or CO₂R), OH, C₁-C₃ alkoxy or CO₂R⁶, or R⁴ and R⁵         taken together represent —CH₂CH₂— or —C(O)CH₂;     -   R⁶ represents H or C₁-C₃ alkyl;     -   R² represents C₁-C₃ alkyl;     -   W represents O or S;     -   Ar represents a phenyl group substituted with one to four         substitutents independently selected from F, Cl, Br, I, NO₂, CN,         SCF₃, SO₂CF₃, C₁-C₃ alkyl substituted with from one up to the         maximum number of chlorine or fluorine atoms, or C₁-C₃ alkoxy         optionally substituted with from one up to the maximum number of         chlorine or fluorine atoms; or represents

and

-   -   X and Y independently represent H, F, Cl, Br, I, NO₂, CN, SCF₃,         SO₂CF₃, C₁-C₃ alkyl substituted with from one up to the maximum         number of chlorine or fluorine atoms, or C₁-C₃ alkoxy optionally         substituted with from one up to the maximum number of chlorine         or fluorine atoms.

Preferred compounds of formula (I) include the following classes:

-   -   (1) Compounds of formula (I) wherein R¹ is CH₂CF₃.     -   (2) Compounds of formula (I) wherein R² is OCH₂CF₃.     -   (3) Compounds of formula (I) wherein W is O     -   (4) Compounds of formula (I) wherein R⁴ and R⁵ are independently         H or CH₃.     -   (5) Compounds of formula (I) wherein Ar represents

-   -   (6) Compounds of formula (I) wherein X is Br, Cl, CF₃ or OCF₃.

It will be appreciated by those skilled in the art that the most preferred compounds are generally those which are comprised of combinations of the above preferred classes.

The invention also provides new processes and intermediates for preparing compounds of formula (I) as well as new compositions and methods of use, which will be described in detail herein below.

DETAILED DESCRIPTION OF THE INVENTION

Throughout this document, all temperatures are given in degrees Celsius, and all percentages are weight percentages unless otherwise stated.

Unless specifically limited otherwise, the term “alkyl”, as well as derivative terms such as “alkoxy”, as used herein, include within their scope straight chain, branched chain and cyclic moieties.

Unless specifically limited otherwise, the term “halogen”, as well as derivative terms such as “halo”, as used herein, refers to fluorine, chlorine, bromine, and iodine. Preferred halogens are fluorine and chlorine.

The term “haloalkyl” refers to alkyl groups substituted with from one up to the maximum possible number of halogen atoms. The terms “haloalkoxy” and “halothioalkyl” refer to alkoxy or thioalkyl groups substituted with from one up to the maximum possible number of halogen atoms.

Unless otherwise indicated, when it is stated that a group may be substituted with one or more substituents selected from an identified class, it is intended that the substituents may be independently selected from the class.

Compounds of formula (I) can be prepared by the methods illustrated in Schemes A-C below.

Compounds of formula (I) wherein R¹, R², A, B, D, W, and Ar are as previously defined and wherein R⁴ and R⁵ are both H can be prepared by the methods illustrated in Scheme A.

In Scheme A, the metal salt of an amino heterocycle of formula (II) wherein M represents a metal, such as sodium, and Q¹ represents Cl or R¹O, is reacted with aryl isocyanates and aryl isothiocyanates of formula (III), wherein W represents O or S, in a polar aprotic organic solvent, such as tetrahydrofuran (THF), to afford compounds of formula (IV). The reactions are generally carried out at temperatures from −20° C. to about 50° C. and are usually complete in one to 18 hours. The compounds can be recovered and purified by conventional methods. The metal salts of formula (II) wherein M represents a metal are prepared by reaction of an amino heterocycle of formula (II) wherein M represents hydrogen with a base, such as sodium hydride. Means to exclude moisture, such as a blanket of dry nitrogen, are employed during this process. The preferred base is sodium hydride (M=Na) and the preferred solvent is THF. However, other strong bases, such as potassium tert-butoxide or n-butyl lithium, and other aprotic organic solvents, such as ethyl ether or 1,4-dioxane, can also be used. Compounds of formula (IV) can be further manipulated by reaction with nucleophiles such as alkoxides to give compounds of formula (V). The alkoxides are generally prepared by reaction of an alcohol with a base, such as sodium hydride, in an anhydrous aprotic solvent such as THF. The alkoxide is then reacted with compounds of formula (IV) in the same solvent to give compounds of formula (V). The reactions are generally carried out at temperatures from −20° C. to about 100° C. and are usually complete in one to 18 hours. The compounds can be recovered and purified by conventional methods.

Compounds of formula (II) in Scheme A wherein M represents H can be prepared by methods disclosed herein or general methods known in the art.

Many compounds of formula (I) wherein R¹, R², R⁵, A, B, D, W, and Ar are as previously defined and wherein R⁴ is H can also be prepared by the methods illustrated in Scheme B.

In Scheme B, heterocyclic isocyanates and isothiocyanates of formula (VI), wherein W represents O or S, are reacted with aryl amines of formula (VII) in a polar aprotic solvent, such as CH₂Cl₂, to give compounds of formula (VIII). Means to exclude moisture, such as a blanket of dry nitrogen, are typically employed. The reaction is typically carried out at temperatures from −20° C. to about 50° C. and are usually complete in one to 18 hours. The products of formula (VIII) can be recovered by conventional means and purified by conventional methods, such as chromatography or recrystallization. Heterocyclic isocyanates and isothiocyanates of formula (VI) can be prepared from heterocyclic amines of formula (II) wherein W represents H by conventional methods known in the art (for example see: Von Gizychi, U. Angew. Chem., Int. Ed. Engl. 1971, 10, 402; Von Gizychi, U. Angew. Chem., Int. Ed. Engl. 1971, 10, 403; Oh, L. M.; Spoors, P. G.; Goodman, R. M. Tetrahedron Lett. 2004, 45, 4769; S. Ozaki, Chem. Rev. 1972, 72, 457; Chem. Abstr. 65:20386; T. Shibanuma et al. Chem. Lett. 1977, 5, 573; Organic Functional Group Preparation, Second Edition, S. Sandler and W. Karo, Volume I, Academic Press, 1983) and methods disclosed herein.

Many compounds of formula (I) wherein R¹, R², R⁴, R⁵, A, B, D, and Ar are as previously defined and wherein W is O can be prepared as outlined in Scheme C.

In step a of Scheme C, compounds of formula (Va) can be treated with a base, such as sodium hydride in a polar aprotic organic solvent, such as THF, followed by reaction with an electrophilic reagent, such as methyl iodide, benzyloxymethyl chloride, or other alkyl electrophiles, to give compounds of formula (IX). The reactions are typically run at temperatures ranging from −20 to 50° C. and are generally complete in one to 18 hours. The compounds can be recovered and purified by conventional methods. In step b of Scheme C, compounds can again be treated with a base, such as sodium hydride in a polar aprotic organic solvent followed by reaction with an electrophilic reagent, such as methyl iodide or other alkyl electrophiles, to give compounds of formula (X). Steps a and b of Scheme C can also be performed in one process where compounds of formula (Va) are treated with two or more equivalents of a base, such as sodium hydride, followed by reaction with an excess of electrophilic reagent to afford compounds of formula (X). In step c of Scheme C, compounds of formula (VIII) can be prepared from compounds of formula (X) by removal of R⁴ when R⁴ is such a group that it can be removed without removal of R⁵ (for example see: Protecting Groups in Organic Synthesis, third edition, T. W. Greene and P. G. M. Wuts, John Wiley and Sons, Inc., 1999). In steps a thru c of Scheme C, the products can be recovered by conventional means well known in the art.

Many compounds of formula (I) wherein R¹, R², R⁵, A, B, D, and Ar are as previously defined and wherein R⁴ is H can also be prepared by the methods illustrated in Scheme D.

In Scheme D compounds of formula (XI) can be treated with aryl amines of formula (VII) in polar aprotic solvents, such as THF, to give compounds of formula (VIII). Means to exclude moisture, such as blanket of nitrogen, are typically employed. The reaction is typically carried out at temperature from −20° C. to about 50° C. and are typically complete in one hour to 15 days. The products of formula (VIII) can be recovered by conventional means and purified by conventional methods, such as chromatography and recrystallization. Heterocyclic carbamates of formula (XI) can be prepared by conventional methods known in the art and those disclosed herein.

The following examples are presented to illustrate the invention.

Example 1 Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N-[4-(trifluoro-methyl)phenyl]urea (1)

A. Preparation of N′-[4,6-dichloropyrimidin-2-yl]-N-[4-(trifluoromethyl)-phenyl]urea

To a solution of 2-amino-4,6-dichloropyrimidine (4.10 g, 25 mmol) in anhydrous THF (125 mL), under an atmosphere of N₂, at 0° C. was added NaH (25 mmol, 1.02 g, 60% in mineral oil) and the mixture was stirred for 20 min. To this mixture was added 4-trifluoromethylphenyl isocyanate (4.678 g, 25 mmol) and stirred at 0° C. for 2 h. The mixture was poured into a mixture of ethyl acetate and 2N aq. HCl and the organic phase separated. The organic phase was washed with sodium bicarbonate and brine, dried (MgSO4), filtered and concentrated in vacuo to give a solid. This solid was mixed with ether and filtered to give N′-[4,6-dichloropyrimidin-2-yl]-N-[4-(trifluoromethyl)phenyl]urea (2.6 g, 30% yield): m.p. 99-101° C.; ¹H NMR (DMSO-d₆) δ 10.78 (bs, 1H), 10.55 (bs, 1H), 7.69 (m, 4H), 7.58 (s, 1H); ESI/MS 348.88 (M−H) 350.97 (M+H).

B. Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N-[4-(trifluoromethyl)phenyl]urea (1)

Sodium hydride (272 mg, 6.8 mmol, 60% in mineral oil) was added to a solution of 2,2,2-trifluoroethanol (1.5 g, 15 mmol) in anhydrous THF (15 mL) at 0° C. and the mixture stirred for 20 min. To this mixture was added N′-[4,6-dichloropyrimidin-2-yl]-N-[4-(trifluoromethyl)phenyl]urea (1.14 g, 3.24 mmol) and stirred at 0° C. for 1 h. The cooling bath was removed and the mixture allowed to warm to room temperature. The mixture was warmed to 45° C. and stirred for additional 18 h. The mixture was poured into water and stirred for 10 min and filtered to afford 1 (1.4 g, 68% yield): m.p. 167-168° C.; ¹H NMR (DMSO-d₆) δ 10.44 (bs, 1H), 10.28 (bs, 1H), 7.76 (d, J=6 Hz, 2H), 7.69 (d, J=6 Hz, 2H), 6.29 (s, 1H), 5.13 (q, J=9.0 Hz, 4H); ESI/MS 476.92 (M−H), 478.95 (M+H)

Example 2 Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N-methyl-N-[4-(trifluoromethoxy)phenyl]urea (7)

A. Preparation of 2-amino-4,6-Bis(2,2,2-trifluoroethoxy)pyrimidine

To a solution of trifluoroethanol (9.0 mL, 125 mmol) in anhydrous THF (100 mL) at 0° C. in a 3-neck round bottom flask under an atmosphere of dry N₂ was added NaH (4.8 g, 120 mmol, 60% dispersion in mineral oil) over ca. 1 min. After gas evolution ceased and the solution became clear (ca. 20 min), 2-amino-4,6-dichloropyrimdine (8.2 g, 50 mmol) was added. The flask was fitted with a reflux condenser and heated to 62° C. overnight (ca. 15 h). An NMR of a quenched aliquot from the reaction mixture demonstrated the reaction was complete. After the reaction mixture was cooled to ambient temperature it was quenched by addition of 1 N HCl and diluted with EtOAc. The separated organic layer was washed with brine, sat. aq. NaHCO₃ and then brine. After drying over MgSO₄, filtering and concentrating, the oil thus obtained was dissolved in acetonitrile and washed with hexanes (2×, to remove mineral oil) and concentrated to afford the desired amine as an orange oil (13.9 g, 96% yield): Kugelrohr distillation (high vacuum, 90° C. bath temperature, ice bath for receiving flask) afforded the product as a white solid: m.p. 34-35° C.; ¹H NMR (CDCl₃) δ 5.69 (s, 1H), 4.95 (br s, 2H), 4.69 (q, 4H, J=8.1 Hz); GCMS (EI, 70 eV) m/z 291 (M+).

B. Preparation of 2-isocyanato-4,6-bis(2,2,2-trifluoroethoxy)pyrimidine

Oxalyl chloride (42.0 mL, 481 mmol) was dissolved in anhydrous 1,4-dioxane (400 mL) under an N₂ atmosphere. The resulting solution was heated to 90° C. To the hot solution was slowly added a solution of 2-amino-4,6-bis(2,2,2-trifluoroethoxy)pyrimidine (14.0 g, 48 mmol) in anhydrous 1,4-dioxane (50 mL). After addition of the aminopyrimidine solution was complete, heating was continued for 6 h, the heat removed, and the solution cooled to room temperature. The solution was concentrated and the residue distilled at reduced pressure to afford the product as a clear oil (12.4 g, 82% yield): by 53-54° C. (ca. 0.1 to 0.2 mm Hg): ¹H NMR (CDCl₃) δ 6.19 (s, 1H), 4.82-4.74 (q, 2H, J=8.2 Hz).

C. Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl-]-N-methyl-N-[4-(trifluoromethoxy)phenyl]urea (7)

To a solution of 2-isocyanato-4,6-bis(2,2,2-trifluoroethoxy)pyrimidine (400 mg, 1.26 mmol) in CH₂Cl₂ (1 mL) was added a solution of N-methyl-4-(trifluoromethoxy)aniline (285 mg, 1.50 mmol) in CH₂Cl₂ (2 mL). The resulting solution was stirred 18 h and then concentrated. The resulting residue was purified by column chromatography (silica, hexanes/EtOAc) to afford 7 as a white solid (247 mg, 38% yield): m.p. 100-102° C.; ¹H NMR (CDCl₃) δ 7.39 (app s, 4H), 5.96 (s, 1H), 6.82 (bs, 1H), 4.77-4.69 (q, 4H, J=8.5 Hz); ESI/MS 509 (M+H), 507 (M−H).

Example 3 Preparation of N-(4-trifluoromethoxyphenyl)-N′-[4,6-(2,2,2-trifluoroethoxy)pyrimidin-2-yl]urea (3)

To an anhydrous THF (4.0 mL) solution of the 4-trifluoromethoxyaniline (134 μL, 1.0 mmol) at room temperature was added 2-isocyanato-4,6-bis(2,2,2-trifluoroethoxy)pyrimidine (1.0 mL of a 1.0 M stock solution in THF). After stirring for 45 minutes the solvent was removed under reduced pressure and the solids were then vigorously stirred with hexanes for 10 min. Filtration under reduced pressure afforded 1 as a white flaky solid (358 mg, 72% yield): m.p. 178-180° C.; ¹H NMR (DMSO-d₆) δ 10.36 (s, 1H), 10.25 (s, 1H), 7.66 (d, 2H, J=9.0 Hz), 7.37 (d, 2H, J=9.0 Hz), 6.30 (s, 1H), 5.14 (q, 4H, J=17.8, 9.1 Hz); ESI/MS 495 (M+H), 493 (M−H).

Example 4 Preparation of N-(4-trifluoromethylphenyl)-N′-[4-trifluoromethyl-6-(2,2,2-trifluoroethoxy)pyrimidin-2-yl]urea (102)

A. Preparation of 2-Amino-4-(trifluoromethyl)-6-(2,2,2-trifluoroethoxy)-pyrimidine

2,2,2-Trifluoroethanol (2.2 mL, 30 mmol) was slowly added to a suspension of NaH (1.5 g, 36 mmol, 60% dispersion in mineral oil) in anhydrous THF (50 mL) under an N₂ atmosphere. To the resulting mixture was added a solution of 2-amino-4-chloro-6-trifluoromethylpyrimidine (5.0 g, 25 mmol; for preparation see: Giner-Sorolla, A. and Bendich, A. J. Am. Chem. Soc. 1957, 80, 5744 and Gershon, H. et al. J. Het. Chem. 1983, 20, 219) in anhydrous THF (50 mL). The resulting mixture was stirred 18 h at room temperature and the solvent evaporated. The resulting residue was partitioned between CH₂Cl₂ (200 mL) and H₂O (200 mL). The organics separated, dried over MgSO₄, filtered and evaporated to afford 2-amino-4-(2,2,2-trifluoroethoxy)-6-trifluoromethyl-pyrimidine as a tan solid (4.9 g, 74% yield): m.p. 108-110° C.; ¹H NMR (CDCl₃) δ 6.54 (s, 1H), 5.53 (bs, 2H), 4.76 (q, 2H, J=8.2 Hz); GCMS (EI, 70 eV) m/z 261 (M+).

B. Preparation of N-(4-trifluoromethylphenyl)-N′-[4-trifluoromethyl-6-(2,2,2-trifluoroethoxy)pyrimidin-2-yl]urea (102)

To a suspension of NaH (152 mg, 3.8 mmol, 60% dispersion in mineral oil) in anhydrous THF (2 mL) at room temperature was slowly added a solution of 2-amino-4-(trifluoromethyl)-6-(2,2,2-trifluoroethoxy)pyrimidine (0.50 g, 1.9 mmol) in anhydrous THF (2 mL) and the resulting mixture was stirred 20 min. To the mixture was added 4-trifluoromethylphenyl isocyanate (326 μL, 2.28 mmol) and the resulting mixture was allowed to stir at room temperature. After 18 h of stirring the reaction mixture was diluted with 2 N HCl (30 mL). The acidic mixture was extracted with ethyl acetate. The organics were combined, dried over MgSO₄, filtered and concentrated. The resulting residue was mixed with ethyl acetate (30 mL), diluted with hexane (100 mL) and allowed to stand at room temperature. After 18 h the insoluble material was filtered and dried in a vacuum oven (50° C.) to afford 102 as a white solid (379 mg, 44% yield): m.p. 197-199° C.; ¹H NMR (DMSO-d₆) δ 10.76 (s, 1H), 10.71 (s, 1H), 7.72 (app s, 4H), 7.35 (s, 1H), 5.25-5.16 (q, 2H, J=8.9 Hz); ESI/MS 448 (M+H), 447 (M−H).

Example 5 Preparation of N-(4-bromophenyl)-N′-[4-ethoxy-6-(2,2,2-trifluoroethoxy)-pyrimidin-2-yl-]-N-methylurea (103)

To a suspension of NaH (320 mg, 8.0 mmol, 60% dispersion in mineral oil) in anhydrous DMF (5 mL) under an N₂ atmosphere was added anhydrous EtOH (583 μL, 10 mmol). To this solution was added a solution of N-(4-bromophenyl)-N-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N-methylurea (1.0 g, 2.0 mmol), prepared in a manner similar to 7, in anhydrous DMF (3 mL). The resulting solution was heated (ca. 60° C.) for 2 h, the heat was removed and the solution cooled to room temperature. The solution was diluted with EtOAc (100 mL) and extracted with 2 N HCl (2×50 mL). The organics were dried over MgSO₄, filtered and concentrated to afford a brown oil. The brown oil was eluted through a plug of silica using a mixture of hexane and EtOAc and the resulting organic solution concentrated to afford a yellow oil. The yellow oil was further purified by reverse phase chromatography (HPLC grade acetonitrile and water, both with 0.1% acetic acid) to afford 103 as a yellow tacky oil (186 mg, 41% yield): ¹H NMR (CDCl₃) δ 7.64 (d, 2H, J=8.8 Hz), 7.24 (d, 2H, J=8.8 Hz), 6.84 (s, 1H), 4.81-4.72 (q, 2H, J=8.5 Hz), 4.33-4.26 (q, 2H J=7.1 Hz), 1.39-1.37 (t, 3H, J=7.1 Hz); ESI/MS 449, 451 (M+H), 447, 449 (M−H).

Example 6 Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N-methyl-N-[4-(trifluoromethyl)phenyl]thiourea (131)

A. Preparation of 4,6-Bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl isothiocyanate

2-Amino-4,6-bis(2,2,2-trifluoroethoxy)pyrimidine (20.0 g, 68.7 mmol) was added to a solution of thiophosgene (15.7 mL, 206 mmol) in anhydrous dioxane (100 mL) under an N₂ atmosphere. The resulting solution was heated to reflux. After 18 h the heat was removed and the reaction cooled to room temperature. The dioxane was evaporated to give a dark oil. The dark oil was distilled to afford the product as a light yellow oil (13.7 g, 60% yield); by 83-86° C., (ca 0.2 mmHg): ¹H NMR (CDCl₃) δ 6.24 (s 1H), 4.78 (q, 4H, J=8.2 Hz); GCMS (EI, 70 eV) m/z 333 (M+).

B. Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N-methyl-N-[4-trifluoromethyl)phenyl]thiourea (131)

To a solution of 4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl isothiocyanate (6.87 mmol) in CH₂Cl₂ (10 mL) was added N-methyl-4-trifluoromethylaniline (6.87 mmol) and the resulting solution was stirred at room temperature. After 18 h the solvent was evaporated and the crude material purified by chromatography (silica, hexane/EtOAc) to afford 131 as a yellow solid (2.15 g, 62% yield): m.p. 109-111° C.; ¹H NMR (CDCl₃) δ 7.76 (d, 2H, J=8.5), 7.46 (d, 3H, J=8.5 Hz), 5.96 (s, 1H), 4.77-4.68 (q, 4H, J=8.5 Hz); ESI/MS 509 (M+H), 507 (M−H).

Example 7 Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl-]-N-methyl-N-(4-bromophenyl)urea (41)

2-Isocyanato-4,6-bis(2,2,2-trifluoroethoxy)pyrimidine (750 mg, 2.4 mmol) was dissolved in anhydrous dioxane (15 mL). To this solution was added 4-bromo-N-methylaniline (440 mg, 2.36 mmol) and the resulting solution was stirred under an N₂ atmosphere at room temperature. After ca. 12 h an LCMS analysis of the reaction indicated mostly desired product (91%). The reaction was partitioned between EtOAc and water, the organics separated and the aqueous layer extracted with EtOAc (3×50 mL). Organic extracts were combined, washed with water (2×) and once with brine. The organic layer was dried over Na₂SO₄, filtered, and the solvent was removed under reduced pressure to give a yellow oil. The oil was partially purified by column chromatography (silica, hexane/EtOAc) and then recrystallized (EtOAc/cyclohexane) to afford 41 as a white solid (346 mg, 29% yield): m.p. 110-111° C. Anal Calcd for C₁₆H₁₃BrF₆N₄O₃: C, 38.19; H, 2.60; N, 11.13. Found: C, 38.42; H, 2.66; N, 11.20. ¹H NMR (300 MHz, CDCl₃) δ 9.42 (s, 1H), 7.55 (d, 2H, J=4.5 Hz), 7.26 (d, 2H, J=4.5 Hz), 6.14 (s, 1H), 4.99 (q, 4H, J=4.4 Hz), 3.28 (s, 3H).

Example 8 Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)-1,3,5-triazin-2-yl]-N-(4-chlorophenyl)-N-methylurea (121)

2-Isocyanato-4,6-bis(2,2,2-trifluoroethoxy)triazine (8.8 mL, 0.88 mmol of a 0.1M solution in anhydrous THF) was combined with N-methyl-4-chloroaniline (113 mg, 0.88 mmol) and the resulting solution was agitated overnight. After ca. 18 h of agitation the solvent was evaporated and the resulting residue was recrystallized (acetone/cyclohexane) to afford 121 as a white solid (396 mg, 44% yield): m.p. 218-219° C. Anal Calc for C₁₄H₁₀ClF₆N₅O₃: C, 37.73; H, 2.26; N, 15.71. Found: C, 37.92; H, 2.35; N, 15.51. ¹H NMR (300 MHz, DMSO-d₆) δ 10.81 (s, 1H), 10.41 (s, 1H), 7.55 (d, 2H, J=9.0 Hz), 7.42 (d, 2H, J=9.0 Hz), 5.17 (q, 4H, J=8.9 Hz).

Example 9 Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)-1,3,5-triazin-2-yl-]-N-(4-trifluoromethylphenyl)-N-methylurea (118)

2-Isocyanato-4,6-Bis(2,2,2-trifluoroethoxy)triazine (8.8 mL, 0.88 mmol of a 0.1M solution in anhydrous THF) was combined with N-methyl-4-(trifluoromethyl)aniline (155 mg, 0.88 mmol) and agitated overnight (ca. 18 h). The solvent was evaporated and the resulting residue recrystallized (EtOAc/cyclohexane) to afford 118 as a white solid (325 mg, 74% yield): m.p. 130-132° C. Anal Calc for C₁₆H₁₂F₉N₅O₃: C, 38.96; H, 2.45; N, 14.20. Found: C, 38.96; H, 2.36; N, 13.88. ¹H NMR (300 MHz, CDCl₃) δ 7.75 (d, 2H, J=8.6 Hz), 7.42 (d, 2H, J=8.6 Hz), 7.11 (s, 1H), 4.80 (q, 4H, J=8.2 Hz), 3.39 (s, 3H).

Example 10 Preparation of N-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N-methyl-N′-[4-(trifluoromethoxy)phenyl]urea (10)

To a solution of urea 3 (469 mg, 0.95 mmol) in anhydrous DMF (5 mL) was added NaH (46 mg, 1.15 mmol, 60% dispersion in mineral oil) and this mixture was stirred for 30 min at which time methyl iodide (81 μL, 1.24 mmol) was added. The reaction was stirred overnight (ca. 15 hours) at which time the reaction was judged complete (TLC and LCMS). The reaction was quenched by addition of EtOAc and 1N HCl. The separated organic layer was washed with brine and dried over MgSO₄. The concentrated filtrate was purified by chromatography (silica, 15 to 30% EtOAc/hexane) to afford 10 as a white solid (145 mg, 30% yield): m.p. 123-125° C.; ¹H NMR (CDCl₃) δ 11.42 (br s, 1H), 7.52 (d, 2H, J=9.1 Hz), 7.22 (d, 2H, J=8.2 Hz), 6.05 (s, 1H), 4.79 (q, 4H, J=7.9 Hz), 3.60 (s, 3H); ESI/MS 509 (M+H), 507 (M−H).

Example 11 Preparation of N-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N,N′-dimethyl-N′-[4-(trifluoromethoxy)phenyl]urea (11)

To a solution of urea 3 (975 mg, 1.97 mmol) in DMF (5 mL) was added NaH (200 mg, 5.0 mmol, 60% dispersion in mineral oil) and the resulting mixture was stirred for 30 minutes at which time methyl iodide (337 μL, 5.4 mmol) was added. The reaction was stirred 2 h at which time it was judged complete (TLC). The reaction was quenched by addition of EtOAc and water. The separated organic layer was washed with brine (3×) and then dried over MgSO₄. The concentrated filtrate was purified by chromatography (silica, 25-30% EtOAc/hexane) to afford bis-methyl urea 11 as a heavy oil (722 mg, 71% yield): ¹H NMR (CDCl₃) δ 7.21-7.13 (m 4H), 5.75 (s, 1H), 4.71 (q, 4H, J=8.3 Hz), 3.41 (s, 3H), 3.17 (s, 3H); ESI/MS 523 (M+H).

Example 12 Preparation of N-Benzyloxymethyl-N-[4,6-bis-(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N′-[(4-trifluoromethyl)phenyl]urea (19)

To a solution of urea 1 (2.00 g, 4.18 mmol) in anhydrous DMF (20 mL) at ambient temperature was added NaH (167 mg, 4.2 mmol, 60% dispersion in mineral oil). After stirring for 20 min a solution of benzyloxymethyl chloride (1.09 g, 60% technical solution) in anhydrous DMF (2 mL) was added over 2 min. After 2 h the reaction was judged complete (TLC). The reaction was quenched by the addition of water and EtOAc. The separated organic layer was washed with water (3×), once with brine, and was dried over MgSO₄. The concentrated filtrate was purified by chromatography (silica, 10-20% EtOAc/hexane) to afford 19 as a white solid (2.29 g, 91% yield): m.p. 105-107° C.; ¹H NMR (CDCl₃) δ 11.25 (br s, 1H), 7.61 (app s, 4H), 7.30 (5H), 6.07 (s, 1H), 5.81 (s, 2H), 4.73 (s, 2H), 4.68 (q, 4H, J=8.0 Hz); ESI/MS 590 (M+H), 597 (M−H).

Example 13 Preparation of N-Benzyloxymethyl-N′-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N′-ethoxymethyl-N′-[4-(trifluoromethyl)phenyl]urea (33)

To a solution of 19 (10.03 g, 16.7 mmol) in anhydrous DMF (100 mL), with an internal temperature of ≦−10° C., was added NaH (0.74 g, 18.4 mmol, 60% dispersion in mineral oil) over 5 min. To the resulting clear yellow solution, after stirring for 30 min, was added a solution of chloromethyl ethyl ether (1.85 mL, 20 mmol) in anhydrous DMF (6.0 mL) over 12 min via syringe pump. After stirring for 2.5 h at −10° C., analysis of a quenched aliquot showed the reaction was complete (TLC and LCMS). The reaction mixture was poured into a mixture of EtOAc, dilute HCl, and ice. After shaking the layers were separated. The organic layer was washed with water and the aqueous layer was back extracted with EtOAc. The combined organic layers were washed with water (2×), brine, and dried over MgSO₄. The filtered concentrate was purified by chromatography (silica, 15-20% EtOAc/hex) to afford 33 as a white solid (8.0 g, 73% yield, 95% purity): m.p. 62-65° C.; ¹H NMR (CDCl₃) δ 7.4-7.29 (m, 9H), 5.74 (s, 1H), 5.31 (s, 2H), 5.22 (s, 2H), 4.72 (s, 2H), 4.61 (q, 4H, J=8.5 Hz), 3.75 (q, 2H, J=7.1 Hz), 1.25 (t, 3H, J=7.2 Hz); ESI/MS 612 (M−EtOH), 716 (M+CH₃CO₂H).

Example 14 Preparation of N′-[4,6-Bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N-ethoxymethyl-N-4-trifluoromethylphenyl)urea (34)

To a heavy walled hydrogenation jar containing a suspension of palladium hydroxide on carbon (2.1 g, 20%, 60% moisture, 10% w/w) in EtOAc (50 mL) at ambient temperature was added a solution of 33 (21.2 g, 32.3 mmol) in MeOH/EtOAc (150/150 mL). After the addition was complete the dead space atmosphere was reduced in vacuo then backfilled with nitrogen (3×). Next, reduction of pressure was followed by charging the flask with 30 psi hydrogen. The reaction was allowed to stir for 2.5 h at which point the reaction was judged complete (TLC). The reaction mixture was filtered under reduced pressure over Celite and concentrated to an oil which was determined to be the hydroxymethyl compound by ¹H NMR analysis. The oil was purified by column chromatography (silica, hexanes/EtOAc). The early eluting fractions (4.3 g) were again subjected to purification by column chromatography (silica, hexanes/EtOAc) to afford highly pure product (1.7 g). The middle eluting fractions (judged to be 88% pure by LCMS) were recrystallized using a 5% CH₂Cl₂/hexanes system to afford highly pure 34 as a white solid (11.8 g total, 68% yield): m.p. 65-70° C.; ¹H NMR (CDCl₃) δ 7.75 (d, 2H, J=8.3 Hz), 7.61 (br s, 1H), 7.52 (d, 2H, J=8.3 Hz), 6.01 (s, 1H), 5.19 (s, 2H), 4.75 (q, 4H, J=16.8, 8.2 Hz), 3.72 (q, 2H, J=14.2, 7.1 Hz), 1.31 (t, 3H, J=7.0 Hz); ESI/MS 535 (M−H).

Example 15 Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N-(4-chlorophenyl)-N-methoxyurea (65)

A. Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N-(4-chlorophenyl)-N-hydroxyurea (64)

To a solution of 4-chloro-N-hydroxyaniline (0.423 g, 2.95 mmol (prepared according to the procedure of Rondestwedt Jr., C. S. and Johnson, T. A. Synthesis 1977, p 850-851) in THF (10 mL) was added the 2-isocyanato-4,6-bis(2,2,2-trifluoroethoxy)pyrimidine (2.0 g, 6.3 mmol) in THF (10 mL) and the mixture stirred at room temperature for 12 h. The mixture was concentrated in vacuo to give a brown solid. This solid was purified by reverse phase column chromatography (CH₃CN/H₂O) to afford 64 as a dark brown gum (448 mg, 36% yield): ESI/MS 461 (M+H), 459 (M−H); ¹H NMR (DMSO-d₆): δ 11.04 (S, 1H, 9.51 (S, 1H), 7.63 (d, 2H, J=6.6 Hz), 7.41 (d, 2H, J=6.6 Hz), 6.30 (s, 1H), 5.05 (m, 4H).

B. Preparation of N′-[4,6-bis(2,2,2-trifluoroethoxy)pyrimidin-2-yl]-N-(4-chlorophenyl)-N-methoxyurea (65)

A dry round bottom flask was charged with the N-hydroxy substrate 65 (100 mg, 0.217 mmol) and anhydrous THF (2 mL). The mixture was cooled to 0° C., sodium hydride (0.23 mmol, 9.13 mg, 60% dispersion in mineral oil) was added in one portion, and the resulting mixture stirred for 10 min. To the mixture was added MeI (59 mg, 0.42 mmol). After stirring at 0° C. for 3 h, the reaction is diluted with ethyl acetate (50 mL) and water (10 mL). The organic phase was separated, rinsed with brine, dried over Na₂SO₄, filtered and concentrated under vacuum on a rotary evaporator to give a brown solid. This solid was recrystallized (Et₂O/hexanes) to afford 65 as a brown solid (40 mg, 38%). The mother liquor was concentrated and purified by column chromatography (silica gel, hexanes/EtOAc) to give additional product (tan solid, 30 mg, 29% yield): m.p. 275-276° C.; ¹H NMR (DMSO-d₆) δ 7.49 (m, 4H), 6.33 (s, 1H), 5.09 (m, 4H), 3.73 (s, 3H).

Example 16 Preparation of N′[3-fluoro-4,6-bis(2,2,2-trifluoroethoxy)pyridin-2-yl-]-N-methyl-N-(4-bromophenyl)urea (X)

A. Preparation of 3-Chloro-2,5,6-trifluoro-4-(2,2,2-trifluoroethoxy)pyridine

3-Chloro-2,4,5,6-tetrafluoropyridine (18.0 g, 97.0 mmol) was dissolved in anhydrous THF (100 mL) under an N₂ atmosphere and the resulting solution cooled to −78° C. To the cold solution was slowly added a solution of sodium 2,2,2-trifluoroethoxide (97 mmol), prepared from trifluoroethanol (7.1 mL, 97.0 mmol) and NaH (3.88 g, 97.0 mmol, 60% dispersion in mineral oil), in anhydrous THF (100 mL). The resulting mixture was slowly warmed to ambient temperature. After 18 h at ambient temperature a GC analysis indicates all the starting material was consumed. The volatiles were evaporated and the residue dissolved in CH₂Cl₂ (200 mL). The organics were washed with H₂O (3×100 mL), dried (MgSO₄), filtered and concentrated to give the crude product as a yellow oil. The yellow oil was distilled at reduced pressure to afford 3-chloro-2,5,6-trifluoro-4-(2,2,2-trifluoroethoxy)pyridine as a clear oil (16.3 g, 63% yield): by 48° C. (ca 0.2 mm Hg); ¹H NMR (CDCl₃) δ 4.81-4.78 (dq, J=1.6, 7.7 Hz); GC-MS (EI, 70 eV) m/z (% relative intensity) 267 (33), 265 (100), 248 (5), 246 (16), 198 (22), 196 (60).

B. Preparation of 6-Azido-2,4-bis(2,2,2-trifluoroethoxy)-3-chloro-5-fluoropyridine

3-Chloro-2,5,6-trifluoro-4-(2,2,2-trifluoroethoxy)pyridine (13.1 g, 49.3 mmol), was dissolved in anhydrous THF (50 mL). To the reaction mixture was added sodium azide (3.84 g, 59.2 mmol) and 18-crown-6 (1.0 g, 3.8 mmol). A GC analysis after 2 h indicates all the starting material had been consumed. The volatiles were evaporated and the residue mixed with EtOAc (200 mL). The organics were washed with H₂O (3×100 mL), dried (MgSO₄), filtered and concentrated to give the crude product as a brown oil. ¹H NMR (CDCl₃) δ 4.74-4.67 (dq, J=1.4, 7.7 Hz); GC-MS (EI, 70 eV) m/z (% relative intensity) 290 (30), 288 (100). The crude material is used without further purification. The brown oil was dissolved in anhydrous THF (50 mL) under an N₂ atmosphere and the solution cooled to 0° C. To the cold solution was slowly added a solution of sodium 2,2,2-trifluoroethoxide (54 mmol), prepared by adding 2,2,2-trifluoroethanol (3.95 mL, 54 mmol) to a suspension of NaH (2.17 g, 54 mmol, 60% dispersion in mineral oil) in anhydrous THF (100 mL). After 18 h the volatiles were evaporated and the residue mixed this CH₂Cl₂ (200 mL). The organics were washed with H₂O (3×100 mL), dried (MgSO₄), filtered and concentrated to give the crude product as a brown oil. The oil was purified by column chromatography (SiO₂, hexane/EtOAc) to afford the product as a yellow crystalline solid (14.0 g, 77% yield): mp 52-54° C.; ¹H NMR (CDCl₃) δ 4.83-4.75 (q, J=8.2 Hz, 2H), 4.70-4.62 (dq, J=1.1, 7.7 Hz, 2H); GC-MS (EI, 70 eV) m/z (% relative intensity) 370 (6), 368 (20), 273 (34), 271 (100), 190 (11), 188 (34).

C. Preparation of 2-Amino-fluoro-4,6-bis(2,2,2-trifluoroethoxy)pyridine

A 350 mL stainless steel pressure reactor equipped with a mechanical stirrer was charged with 6-azido-2,4-bis(2,2,2-trifluoroethoxy)-3-chloro-5-fluoropyridine (14.0 g, 38.0 mmol), EtOH (50 mL), and palladium on carbon (10%, 4.0 g). The reactor was sealed and pressurized with H₂ (500 psi). The pressurized reactor was heated to 100° C. After 18 h the pressurized reactor was cooled to ambient temperature. A GC analysis indicated all the starting material was consumed. The reaction was filtered and the volatiles evaporated to afford the crude product as a brown oil. The brown oil was purified by column chromatography (SiO₂, hexane/EtOAc) to afford the product as a brown crystalline solid (7.29 g, 62% yield): mp 43-45° C.; ¹H NMR (CDCl₃) δ 5.84 (d, J=4.1 Hz, 1H), 5.85-4.56 (q, J=8.5, 2H), 4.49-4.37 (m, 4H); GC-MS (EI, 70 eV) m/z (% relative intensity) 308 (100), 289 (26), 239 (74).

D. Preparation of 4-Nitrophenyl-3-fluoro-4,6-bis(2,2,2-trifluoroethoxy)pyridin-2-ylcarbamate

A solution of 2-amino-fluoro-4,6-bis(2,2,2-trifluoroethoxy)pyridine (1.32 g, 4.3 mmol) in CH₂Cl₂(10 mL) was added to a solution of 4-nitrophenyl chloroformate (2.6 g, 13 mmol) in CH₂Cl₂ (10 mL). After 96 h the CH₂Cl₂ was evaporated and the residue mixed with hexanes (50 mL), stirred 4 h and filtered. The resulting white solid was mixed with Et₂O (50 mL), stirred 4 h, filtered, and allowed to air dry (ca 4 h) to afford the product as a white solid (1.74 g, 86% yield): mp 111-115; ¹H NMR (CDCl₃) δ 8.32 (d, J=9.3 Hz, 2H) 7.43 (d, J=9.1 Hz, 2H) 7.24 (bs, 1H), 6.31 (d, J=4.7), 4.78-4.69 (q, J=8.2 Hz, 2H), 4.53-4.45 (q, J=7.8 Hz, 2H).

E. Preparation of N′[3-fluoro-4,6-bis(2,2,2-trifluoroethoxy)pyridin-2-yl-]-N-methyl-N-(4-bromophenyl)urea

4-Nitrophenyl-3-fluoro-4,6-bis(2,2,2-trifluoroethoxy)pyridin-2-ylcarbamate (520 mg, 1.1 mmol) was dissolved in anhydrous THF (3 mL). To this solution was added N-methyl-4-bromoaniline (200 mg, 1.1 mmol). The reaction was allowed to stir for 12 d. The THF was evaporated and the crude material purified by reverse phase chromatography (HPLC grade CH₃CN and H₂O, both with 0.1% acetic acid) to afford the product as a tan solid (275 mg, 48% yield): mp 89-90° C.; ¹H NMR (CDCl₃) δ 8.78 (s, 1H), 7.57 (d, J=8.8 Hz, 2H), 7.29 (d, J=8.8 Hz, 2H), 6.79 (d, J=4.7 Hz, 1H), 5.04-4.95 (q, J=8.8 Hz, 2H), 4.94-4.85 (q, J=9.1 Hz, 2H), 3.27 (s, 3H); ESI/MS 520, 522 (M+H), 518, 520 (M−H).

The compounds identified in Table 1 were prepared using the procedures illustrated in the foregoing examples.

TABLE 1 Insecticidal Compounds Melting Compound Point Mol Ion Number Molecular Structure (° C.) Appearance (M + H), (M − H)  1

166-167 white solid (479), (477)  2

188-190 white powder (443), (440)  3

167-168 white solid (495), (493)  4

252-253 yellow solid (436), (434)  5

216-218 tan solid (479), (477)  6

206-208 white solid (495), (493)  7

100-102 white solid (509), (507)  8

206-210 light pink solid (71% pure by ¹H NMR) (426), (423)  9

— orange oil (461), (457)  10

123-125 white solid (509), (507)  11

— clear oil (523, M + 1)  12

80-82 white solid (507, M + 1)  13

108-110 white solid (549, M − 1)  14

184-187 white solid (527), (525)  15

190-191 white solid (491), (489)  16

167-168 white solid (539), (538)  17

191.5-192.5 white solid (523), (NA)  18

90-92 white solid (537), (535)  19

105-107 white solid (599), (597)  20

NA white solid (445), (443)  21

NA white solid (459), (457)  22

NA white solid (491, 492), (490, 489)  23

195-201 white solid (508), (504)  24

159-162 white solid (480), (478)  25

174-175 white solid (595), (594)  26

105-106 tan solid (537), (535)  27

104-106 tan solid (523), (521)  28

147-149 white crystals (567), (565)  29

105-108 white needles (541), (539)  30

100-102 white solid (535), (533)  31

65-67 white solid (493), (491)  32

149-151 white powder (553), (551)  33

62-65 white powder (612, M − EtOH), (716 M + HOAc).  34

65-70 white solid (537), (535)  35

115-118 white fluffy solid (551), (NA)  36

— clear oil (564, M − BnOH)  37

75-80 white solid (701, M + AcOH − 1)  38

80-85 white solid (551), (549)  39

62-65 white solid (523), (521)  40

132-133 white solid (519, 517), (517, 515)  41

110-111 white solid (505, 503), (503, 501)  42

135-136 white solid (506, 504), (504, 502)  43

82-85 white solid 615 (M + 1)  44

54-55 white solid (553), (551)  45

58-60 white solid (539), (537)  46

73-74 yellow glass (520, 518), (518, 516)  47

106-109 yellow glass (494), (492)  48

132-134 yellow glass (460), (458)  49

158-160 white solid (446), (444)  50

87-88 white glassy solid (553), (551)  51

— clear oil (611, M − tBuCH₂OH)  52

— clear oil (611, M − CH₃OCH₂CH₂O)  53

55-58 white solid (551), (549)  54

200-202 white solid (537), (535)  55

225-226 tan solid (470), (468)  56

233-234 tan solid (456), (454)  57

217-218 tan solid (457), (455)  58

195-197 yellow solid (511), (509)  59

225-227 white solid (543), (541)  60

— clear oil (611, M − tBuCH₂OH)  61

113-115 white solid (579), (577)  62

— clear oil (567), (565)  63

105-107 white solid (609, 611)  64

NA brown gum (461), (459)  65

275-276 tan solid (475), (473)  66

— clear oil (621, 623, M − iPrOH), (NA)  67

— clear oil (621, 623, M − EtOH), (NA)  68

n/a clear oil (621, 623, M − MeOH), (NA)  69

n/a white solid (537), (535)  70

n/a yellow oil (566), (564)  71

126-127 white solid (505), (503)  72

210 white solid (507, 509), (505, 507)  73

— semi-solid (531, 533, M − 1)  74

— white wax (547, 549), (545, 547)  75

— clear oil (561, 563), (559, 561)  76

172-174 white solid (515) (513)  77

n/a yellow solid (534), (532)  78

172-175 white solid (497), (498)  79

150-151 white solid (470), (468)  80

86-87 white solid (525), (523)  81

134-135 off white solid (551), (549)  82

166-167 off white solid (483), (481)  83

114-116 off white solid (450), (448)  84

121-123 off white solid (539, 537), (537, 535)  85

120-122 white solid (495, 493), (493, 491)  86

150-155 purple solid (443), (441)  87

80-84 white solid (600), (598)  88

— clear oil (658), (716, M + AcOH − 1)  89

— clear oil (644) (702, M + AcOH − 1)  90

112-113 white solid (492, M − EtOH) (536)  91

111-112 white solid (492, M − EtOH) (522)  92

165-166 white solid (484), (482)  93

157-160 white solid (563), (561)  94

clear glass (557), (555)  95

119-120 white solid (541), (539)  96

68-72 white solid (496), (494)  97

220-223 white solid (415), (413)  98

183-185 white solid (466), (465)  99

194-196 white solid (478), (476) 100

206-210 light pink powder (425), (423) 101

n/a white solid (533), (531) 102

197-199 white solid (449), (447) 103

n/a yellow tacky oil (449, 451), (447, 449) 104

174-175 white solid (595), (593) 105

180-182 yellow solid (479), (477) 106

n/a clear glass (509), (507) 107

n/a yellow glass (493), (491) 108

n/a yellow glass (505, 503), (503, 501) 109

n/a clear glass (506, 504), (504, 501) 110

n/a clear glass (460), (458) 111

n/a yellow oil (470), (468) 112

n/a yellow glass (459), (457) 113

112-113 white solid (494), (NA) 114

n/a clear glass (541), (539) 115

187-190 white solid (495), (493) 116

200-202 white solid (480), (478) 117

213-215 white solid (492, 490), (490, 488) 118

130-132 white solid (494), (492) 119

110-112 white glass (506, 504), (504, 502) 120

102-104 white solid (542), (540) 121

n/a brown glass (462, 460), (458) 122

140-143 white solid (494), (492) 123

149-151 white solid (506, 504), (504, 502) 124

148-150 white solid (460), (458) 125

135-137 white solid (444), (442) 126

150-152 yellow solid (552), (550) 127

215-218 white solid (437), (435) 128

173-176 white solid (451), (449) 129

195-201 white solid (505), (507) 130

176-179 white solid (493), (496) 131

109-111 yellow solid (509), (507) 132

116-118 yellow solid (519, 521), (517, 519) 133

124-127 yellow solid (510), (508) 134

191-194 tan solid (495.2), (492.9) 135

165-174 tan solid (514), (512) 136

182-185 yellow solid (529), (527) 137

176-203 yellow solid (524), (522) 138

N/A amber oil (543), (541) 139

190-210 light tan solid (504), (502) 140

120-150 light tan solid (518), (516) 141

134-140 light tan solid (507), (505) 142

110-136 tan solid (523), (521) 143

124-169 tan solid (494), (492) 144

91-119 light tan solid (528), (526) 145

168-183 light tan solid (513), (511) 146

159-178 light tan solid (525), (523) 147

179-189 tan solid (493), (491) 148

88-98 tan solid (508), (506) 149

106-109 light yellow solid (493.2), (491.2) 150

101-104 tan solid (461.3), (459.2) 151

183-185 White solid (529), (527) 152

72-74 White solid (527), (541) 153

62-65 white solid (526.0), (524.8) 154

84-86 white solid (510.0), (508.9) 155

108-111 off-white solid (571.2), (569.2) 156

82-84 white poweder (519), (517) 157

98-100 off-white powder (533.3), (531.1) 158

102-104 off-white solid (517.2), (515.2) 159

112-113 white solid (461.5), (459.2) 160

colorless glass (527.3), (525.2) 161

colorless oil (511.3), (509.2) 162

124-127 white solid (461), (459) 163

168-194 white solid (463), (461) 164

166-187 pale yellow solid (447), (445) 165

161-187 pale yellow solid (440), (438) 166

166-199 pale yellow solid (458), (456) 167

114-122 white solid (472), (470) 168

120-128 white solid (477), (475) 169

120-137 white solid (473), (471) 170

131-153 white solid (462), (460) 171

178-226 tan solid (459), (457) 172

Not tested yellow solid (511), (509) 173

Not tested white solid (497), (495) 174

205-206 off-white solid (578.8, M − H) 175

188-189 off-white solid (543.0, M − H) 176

87-89 white solid (593.1, M − H) 177

87-89 white solid (557.3, M − H) 178

133-134 white solid (564.9, M − H) 179

183-185 white solid (527.9, M − H) 180

155-157 grey-brown solid (558.8, M − H) 181

74-76 off-white solid (570.9, M − H) 182

87-89 off-white solid (540.9, M − H) 183

89-90 tan solid (520, 522), (518, 520) 184

111-112 tan solid (511), (508) 185

114-115 tan solid (527), (524)

Example 16 Insecticidal Testing

The compounds identified in Table 1 were tested against beet armyworm and corn earworm as follows:

Insecticidal Test for Corn Earworm (Helicoverpa zea) and Beet Armyworm (Spodoptera exigua).

To prepare test solution, the test compound was formulated at 2000 ppm solution as 4 mg/2 mL of 9 acetone: 1 tap water. 50 μL of the 2000 ppm (equivalent to 50 μg/cm² dose on diet surface area) test solution was pipetted upon the surface of 1 mL of lepidopteran diet (Southland Multi-Species Lepidopteran Diet) contained in each of eight wells per insect species (one well=1 replication). A second-instar corn earworm and beet armyworm was placed upon the treated diet in each well once the solvent had air-dried. Trays containing the treated diet and larvae were covered and then held in a growth chamber at 25° C., 50-55% RH, and 16 hr light:8 hr dark for 5 days. Observation were conducted 5 days after treatment and infestation. The number of dead insects of 8 per species per treatment was then determined and the results are given in Table 2 as a percent control at a dose of 50 mg/cm².

TABLE 2 Insecticidal Activity HELIZE LAPHEG AVG % AVG % Compound Mortality Mortality Number MOLSTRUCTURE (50 μg/cm²) (50 μg/cm²) 1

100 100 2

100 100 3

100 100 4

100  0 5

 50  25 6

 63  0 7

100 100 8

100 100 9

 88 100 10

 0 100 11

100 100 12

100 100 13

100 100 14

100 100 15

 50  75 16

 0 100 17

 0 100 18

100 100 19

100 100 20

100 100 21

100 100 22

100 100 23

100 100 24

100 100 25

100  0 26

100 100 27

100 100 28

100 100 29

100 100 30

100  88 31

100 100 32

100 100 33

100 100 34

100 100 35

100 100 36

100 100 37

100 100 38

100 100 39

100 100 40

100 100 41

100 100 42

100 100 43

100 100 44

100 100 45

100 100 46

100 100 47

100 100 48

100 100 49

100 100 50

100 100 51

 0 100 52

100 100 53

100 100 54

100 100 55

100  0 56

100  0 57

100 0 58

100 100 59

100  0 60

100 100 61

100 100 62

100 100 63

100 100 64

100 100 65

100 100 66

100 100 67

100 100 68

100 100 69

100 100 70

100 100 71

100 100 72

100 0 73

n/a n/a 74

100 100 75

n/a n/a 76

100 100 77

100 100 78

100 100 79

100 100 80

100 100 81

100 100 82

 0 100 83

100 100 84

100 100 85

100 100 86

100 100 87

100 100 88

100 100 89

100 100 90

100 100 91

100 100 92

100 100 93

100 100 94

100 100 95

100 100 96

100 100 97

100 100 98

100 100 99

100 100 100

100 100 101

100 100 102

100  0 103

100  25 104

100  0 105

 0 100 106

100 100 107

100 100 108

100 100 109

 25  88 110

 0 100 111

 88 100 112

100  50 113

 0 100 114

100 100 115

 75  38 116

 0 100 117

 0 100 118

100 100 119

 88 100 120

100 100 121

100 100 122

 88 100 123

100 100 124

100 100 125

100  88 126

100 100 127

100  0 128

100  88 129

100 100 130

100 100 131

100 100 132

100 100 133

100 100 134

100 100 135

100 100 136

100 100 137

100  88 138

100 100 139

 88  88 140

100 100 141

100 100 142

100 100 143

100 100 144

 0 100 145

 0 100 146

100 100 147

100  88 148

100 100 149

100 100 150

 75 100 151

100 100 152

100 100 153

100 100 154

100 100 155

100  50 156

100 100 157

100 100 158

100 100 159

 0 100 160

100 100 161

100 100 162

100 100 163

100 100 164

100  88 165

100  88 166

100 100 167

100  50 168

100 100 169

100 100 170

100  75 171

100 100 172

173

174

100  0 175

100 100 176

100 100 177

100 100 178

100 100 179

100 100 180

100 100 181

100 100 182

100 100 183

 50 100 184

100 100 185

100 100 Insecticide Utility

The compounds of the invention are useful for the control of invertebrates including insects. Therefore, the present invention also is directed to a method for inhibiting an insect which comprises applying an insect-inhibiting amount of a compound of formula (I) to a locus of the insect, to the area to be protected, or directly on the insect to be controlled. The compounds of the invention may also be used to control other invertebrate pests such as mites and nematodes.

The “locus” of insects or other pests is a term used herein to refer to the environment in which the insects or other pests live or where their eggs are present, including the air surrounding them, the food they eat, or objects which they contact. For example, insects which eat, damage or contact edible, commodity, ornamental, turf or pasture plants can be controlled by applying the active compounds to the seed of the plant before planting, to the seedling, or cutting which is planted, the leaves, stems, fruits, grain, and/or roots, or to the soil or other growth medium before or after the crop is planted. Protection of these plants against virus, fungus or bacterium diseases may also be achieved indirectly through controlling sap-feeding pests such as whitefly, plant hopper, aphid and spider mite. Such plants include those which are bred through conventional approaches and which are genetically modified using modern biotechnology to gain insect-resistant, herbicide-resistant, nutrition-enhancement, and/or any other beneficial traits.

It is contemplated that the compounds might also be useful to protect textiles, paper, stored grain, seeds and other foodstuffs, houses and other buildings which may be occupied by humans and/or companion, farm, ranch, zoo, or other animals, by applying an active compound to or near such objects. Domesticated animals, buildings or human beings might be protected with the compounds by controlling invertebrate and/or nematode pests that are parasitic or are capable of transmitting infectious diseases. Such pests include, for example, chiggers, ticks, lice, mosquitoes, flies, fleas and heartworms. Nonagronomic applications also include invertebrate pest control in forests, in yards, along road sides and railroad right of way.

The term “inhibiting an insect” refers to a decrease in the numbers of living insects, or a decrease in the number of viable insect eggs. The extent of reduction accomplished by a compound depends, of course, upon the application rate of the compound, the particular compound used, and the target insect species. At least an inactivating amount should be used. The term “insect-inactivating amount” is used to describe the amount, which is sufficient to cause a measurable reduction in the treated insect population. Generally an amount in the range from about 1 to about 1000 ppm by weight active compound is used. For example, insects or other pests which can be inhibited include, but are not limited to:

Lepidoptera—Heliothis spp., Helicoverpa spp., Spodoptera spp., Mythimna unipuncta, Agrotis ipsilon, Earias spp., Euxoa auxiliaris, Trichoplusia ni, Anticarsia gemmatalis, Rachiplusia nu, Plutella xylostella, Chilo spp., Scirpophaga incertulas, Sesamia inferens, Cnaphalocrocis medinalis, Ostrinia nubilalis, Cydia pomonella, Carposina niponensis, Adoxophyes orana, Archips argyrospilus, Pandemis heparana, Epinotia aporema, Eupoecilia ambiguella, Lobesia botrana, Polychrosis viteana, Pectinophora gossypiella, Pieris rapae, Phyllonorycter spp., Leucoptera malifoliella, Phyllocnisitis citrella Coleoptera—Diabrotica spp., Leptinotarsa decemlineata, Oulema oryzae, Anthonomus grandis, Lissorhoptrus oryzophilus, Agriotes spp., Melanotus communis, Popillia japonica, Cyclocephala spp., Tribolium spp. Homoptera—Aphis spp., Myzus persicae, Rhopalosiphum spp., Dysaphis plantaginea, Toxoptera spp., Macrosiphum euphorbiae, Aulacorthum solani, Sitobion avenae, Metopolophium dirhodum, Schizaphis graminum, Brachycolus noxius, Nephotettix spp., Nilaparvata lugens, Sogatella furcifera, Laodelphax striatellus, Bemisia tabaci, Trialeurodes vaporariorum, Aleurodes proletella, Aleurothrixus floccosus, Quadraspidiotus perniciosus, Unaspis yanonensis, Ceroplastes rubens, Aonidiella aurantii Hemiptera—Lygus spp., Eurygaster maura, Nezara viridula, Piezodorus guildingi, Leptocorisa varicornis, Cimex lectularius, Cimex hemipterus Thysanoptera—Frankliniella spp., Thrips spp., Scirtothrips dorsalis Isoptera—Reticulitermes flavipes, Coptotermes formosanus, Reticulitermes virginicus, Heterotermes aureus, Reticulitermes hesperus, Coptotermes frenchii, Shedorhinotermes spp., Reticulitermes santonensis, Reticulitermes grassei, Reticulitermes banyulensis, Reticulitermes speratus, Reticulitermes hageni, Reticulitermes tibialis, Zootermopsis spp., Incisitermes spp., Marginitermes spp., Macrotermes spp., Microcerotermes spp., Microtermes spp. Diptera—Liriomyza spp., Musca domestica, Aedes spp., Culex spp., Anopheles spp., Fannia spp., Stomoxys spp., Hymenoptera—Iridomyrmex humilis, Solenopsis spp., Monomorium pharaonis, Atta spp., Pogonomyrmex spp., Camponotus spp., Monomorium spp., Tapinoma sessile, Tetramorium spp., Xylocapa spp., Vespula spp., Polistes spp. Mallophaga (chewing lice) Anoplura (sucking lice)—Pthirus pubis, Pediculus spp. Orthoptera (grasshoppers, crickets)—Melanoplus spp., Locusta migratoria, Schistocerca gregaria, Gryllotalpidae (mole crickets). Blattoidea (cockroaches)—Blatta orientalis, Blattella germanica, Periplaneta americana, Supella longipalpa, Periplaneta australasiae, Periplaneta brunnea, Parcoblatta pennsylvanica, Periplaneta fuliginosa, Pycnoscelus surinamensis, Siphonaptera—Ctenophalides spp., Pulex irritans Acari—Tetranychus spp., Panonychus spp., Eotetranychus carpini, Phyllocoptruta oleivora, Aculus pelekassi, Brevipalpus phoenicis, Boophilus spp., Dermacentor variabilis, Rhipicephalus sanguineus, Amblyomma americanum, Ixodes spp., Notoedres cati, Sarcoptes scabiei, Dermatophagoides spp. Nematoda—Dirofilaria immitis, Meloidogyne spp., Heterodera spp., Hoplolaimus columbus, Belonolaimus spp., Pratylenchus spp., Rotylenchus reniformis, Criconemella ornata, Ditylenchus spp., Aphelenchoides besseyi, Hirschmanniella spp. Compositions

The compounds of this invention are applied in the form of compositions which are important embodiments of the invention, and which comprise a compound of this invention and a phytologically-acceptable inert carrier. Control of the pests is achieved by applying compounds of the invention in forms of sprays, topical treatment, gels, seed coatings, microcapsulations, systemic uptake, baits, eartags, boluses, foggers, fumigants aerosols, dusts and many others. The compositions are either concentrated solid or liquid formulations which are dispersed in water for application, or are dust or granular formulations which are applied without further treatment. The compositions are prepared according to procedures and formulae which are conventional in the agricultural chemical art, but which are novel and important because of the presence therein of the compounds of this invention. Some description of the formulation of the compositions will be given, however, to assure that agricultural chemists can readily prepare any desired composition.

The dispersions in which the compounds are applied are most often aqueous suspensions or emulsions prepared from concentrated formulations of the compounds. Such water-soluble, water-suspendable or emulsifiable formulations are either solids, usually known as wettable powders, or liquids usually known as emulsifiable concentrates or aqueous suspensions. Wettable powders, which may be compacted to form water dispersible granules, comprise an intimate mixture of the active compound, an inert carrier, and surfactants. The concentration of the active compound is usually from about 10% to about 90% by weight. The inert carrier is usually chosen from among the attapulgite clays, the montmorillonite clays, the diatomaceous earths, or the purified silicates. Effective surfactants, comprising from about 0.5% to about 10% of the wettable powder, are found among the sulfonated lignins, the condensed naphthalenesulfonates, the naphthalenesulfonates, the alkylbenzenesulfonates, the alkyl sulfates, and nonionic surfactants such as ethylene oxide adducts of alkyl phenols.

Emulsifiable concentrates of the compounds comprise a convenient concentration of a compound, such as from about 50 to about 500 grams per liter of liquid, equivalent to about 10% to about 50%, dissolved in an inert carrier which is either a water miscible solvent or a mixture of water-immiscible organic solvent and emulsifiers. Useful organic solvents include aromatics, especially the xylenes, and the petroleum fractions, especially the high-boiling naphthalenic and olefinic portions of petroleum such as heavy aromatic naphtha. Other organic solvents may also be used, such as the terpenic solvents including rosin derivatives, aliphatic ketones such as cyclohexanone, and complex alcohols such as 2-ethoxyethanol. Suitable emulsifiers for emulsifiable concentrates are chosen from conventional anionic and/or nonionic surfactants, such as those discussed above.

Aqueous suspensions comprise suspensions of water-insoluble compounds of this invention, dispersed in an aqueous vehicle at a concentration in the range from about 5% to about 50% by weight. Suspensions are prepared by finely grinding the compound, and vigorously mixing it into a vehicle comprised of water and surfactants chosen from the same types discussed above. Inert ingredients, such as inorganic salts and synthetic or natural gums, may also be added, to increase the density and viscosity of the aqueous vehicle. It is often most effective to grind and mix the compound at the same time by preparing the aqueous mixture, and homogenizing it in an implement such as a sand mill, ball mill, or piston-type homogenizer.

The compounds may also be applied as granular compositions, which are particularly useful for applications to the soil. Granular compositions usually contain from about 0.5% to about 10% by weight of the compound, dispersed in an inert carrier which consists entirely or in large part of clay or a similar inexpensive substance. Such compositions are usually prepared by dissolving the compound in a suitable solvent and applying it to a granular carrier which has been pre-formed to the appropriate particle size, in the range of from about 0.5 to 3 mm. Such compositions may also be formulated by making a dough or paste of the carrier and compound and crushing and drying to obtain the desired granular particle size.

Dusts containing the compounds are prepared simply by intimately mixing the compound in powdered form with a suitable dusty agricultural carrier, such as kaolin clay, ground volcanic rock, and the like. Dusts can suitably contain from about 1% to about 10% of the compound.

It is equally practical, when desirable for any reason, to apply the compound in the form of a solution in an appropriate organic solvent, usually a bland petroleum oil, such as the spray oils, which are widely used in agricultural chemistry.

Insecticides and acaricides are generally applied in the form of a dispersion of the active ingredient in a liquid carrier. It is conventional to refer to application rates in terms of the concentration of active ingredient in the carrier. The most widely used carrier is water.

The compounds of the invention can also be applied in the form of an aerosol composition. In such compositions the active compound is dissolved or dispersed in an inert carrier, which is a pressure-generating propellant mixture. The aerosol composition is packaged in a container from which the mixture is dispensed through an atomizing valve. Propellant mixtures comprise either low-boiling halocarbons, which may be mixed with organic solvents, or aqueous suspensions pressurized with inert gases or gaseous hydrocarbons.

The actual amount of compound to be applied to loci of insects and mites is not critical and can readily be determined by those skilled in the art in view of the examples above. In general, concentrations from 10 ppm to 5000 ppm by weight of compound are expected to provide good control. With many of the compounds, concentrations from 100 to 1500 ppm will suffice.

The locus to which a compound is applied can be any locus inhabited by an insect or mite, for example, vegetable crops, fruit and nut trees, grape vines, ornamental plants, domesticated animals, the interior or exterior surfaces of buildings, and the soil around buildings.

Because of the unique ability of insect eggs to resist toxicant action, repeated applications may be desirable to control newly emerged larvae, as is true of other known insecticides and acaricides.

Systemic movement of compounds of the invention in plants may be utilized to control pests on one portion of the plant by applying the compounds to a different portion of it. For example, control of foliar-feeding insects can be controlled by drip irrigation or furrow application, or by treating the seed before planting. Seed treatment can be applied to all types of seeds, including those from which plants genetically transformed to express specialized traits will germinate. Representative examples include those expressing proteins toxic to invertebrate pests, such as Bacillus thuringiensis or other insecticidal proteins, those expressing herbicide resistance, such as “Roundup Ready®” seed, or those with “stacked” foreign genes expressing insecticidal proteins, herbicide resistance, nutrition-enhancement and/or any other beneficial traits.

An insecticidal bait composition consisting of compounds of the present invention and attractants and/or feeding stimulants may be used to increase efficacy of the insecticides against insect pest in a device such as trap, bait station, and the like. The bait composition is usually a solid, semi-solid (including gel) or liquid bait matrix including the stimulants and one or more non-microencapsulated or microencapsulated insecticides in an amount effective to act as kill agents.

The compounds of the present invention (Formula I) are often applied in conjunction with one or more other insecticides or fungicides or herbicides to obtain control of a wider variety of pests diseases and weeds. When used in conjunction with other insecticides or fungicides or herbicides, the presently claimed compounds can be formulated with the other insecticides or fungicides or herbicide, tank mixed with the other insecticides or fungicides or herbicides, or applied sequentially with the other insecticides or fungicides or herbicides.

Some of the insecticides that can be employed beneficially in combination with the compounds of the present invention include: antibiotic insecticides such as allosamidin and thuringiensin; macrocyclic lactone insecticides such as spinosad, spinetoram, and other spinosyns including the 21-butenyl spinosyns and their derivatives; avermectin insecticides such as abamectin, doramectin, emamectin, eprinomectin, ivermectin and selamectin; milbemycin insecticides such as lepimectin, milbemectin, milbemycin oxime and moxidectin; arsenical insecticides such as calcium arsenate, copper acetoarsenite, copper arsenate, lead arsenate, potassium arsenite and sodium arsenite; biological insecticides such as Bacillus popilliae, B. sphaericus, B. thuringiensis subsp. aizawai, B. thuringiensis subsp. kurstaki, B. thuringiensis subsp. tenebrionis, Beauveria bassiana, Cydia pomonella granulosis virus, Douglas fir tussock moth NPV, gypsy moth NPV, Helicoverpa zea NPV, Indian meal moth granulosis virus, Metarhizium anisopliae, Nosema locustae, Paecilomyces fumosoroseus, P. lilacinus, Photorhabdus luminescens, Spodoptera exigua NPV, trypsin modulating oostatic factor, Xenorhabdus nematophilus, and X. bovienii, plant incorporated protectant insecticides such as Cry1Ab, Cry1Ac, Cry1F, Cry1A.105, Cry2Ab2, Cry3A, mir Cry3A, Cry3Bb1, Cry34, Cry35, and VIP3A; botanical insecticides such as anabasine, azadirachtin, d-limonene, nicotine, pyrethrins, cinerins, cinerin I, cinerin II, jasmolin I, jasmolin II, pyrethrin I, pyrethrin II, quassia, rotenone, ryania and sabadilla; carbamate insecticides such as bendiocarb and carbaryl; benzofuranyl methylcarbamate insecticides such as benfuracarb, carbofuran, carbosulfan, decarbofuran and furathiocarb; dimethylcarbamate insecticides dimitan, dimetilan, hyquincarb and pirimicarb; oxime carbamate insecticides such as alanycarb, aldicarb, aldoxycarb, butocarboxim, butoxycarboxim, methomyl, nitrilacarb, oxamyl, tazimcarb, thiocarboxime, thiodicarb and thiofanox; phenyl methylcarbamate insecticides such as allyxycarb, aminocarb, bufencarb, butacarb, carbanolate, cloethocarb, dicresyl, dioxacarb, EMPC, ethiofencarb, fenethacarb, fenobucarb, isoprocarb, methiocarb, metolcarb, mexacarbate, promacyl, promecarb, propoxur, trimethacarb, XMC and xylylcarb; dinitrophenol insecticides such as dinex, dinoprop, dinosam and DNOC; fluorine insecticides such as barium hexafluorosilicate, cryolite, sodium fluoride, sodium hexafluorosilicate and sulfluramid; formamidine insecticides such as amitraz, chlordimeform, formetanate and formparanate; fumigant insecticides such as acrylonitrile, carbon disulfide, carbon tetrachloride, chloroform, chloropicrin, para-dichlorobenzene, 1,2-dichloropropane, ethyl formate, ethylene dibromide, ethylene dichloride, ethylene oxide, hydrogen cyanide, iodomethane, methyl bromide, methylchloroform, methylene chloride, naphthalene, phosphine, sulfuryl fluoride and tetrachloroethane; inorganic insecticides such as borax, calcium polysulfide, copper oleate, mercurous chloride, potassium thiocyanate and sodium thiocyanate; chitin synthesis inhibitors such as bistrifluoron, buprofezin, chlorfluazuron, cyromazine, diflubenzuron, flucycloxuron, flufenoxuron, hexaflumuron, lufenuron, novaluron, noviflumuron, penfluoron, teflubenzuron and triflumuron; juvenile hormone mimics such as epofenonane, fenoxycarb, hydroprene, kinoprene, methoprene, pyriproxyfen and triprene; juvenile hormones such as juvenile hormone I, juvenile hormone II and juvenile hormone III; moulting hormone agonists such as chromafenozide, halofenozide, methoxyfenozide and tebufenozide; moulting hormones such as α-ecdysone and ecdysterone; moulting inhibitors such as diofenolan; precocenes such as precocene I, precocene II and precocene III; unclassified insect growth regulators such as dicyclanil; nereistoxin analogue insecticides such as bensultap, cartap, thiocyclam and thiosultap; nicotinoid insecticides such as flonicamid; nitroguanidine insecticides such as clothianidin, dinotefuran, imidacloprid and thiamethoxam; nitromethylene insecticides such as nitenpyram and nithiazine; pyridylmethylamine insecticides such as acetamiprid, imidacloprid, nitenpyram and thiacloprid; organochlorine insecticides such as bromo-DDT, camphechlor, DDT, pp′-DDT, ethyl-DDD, HCH, gamma-HCH, lindane, methoxychlor, pentachlorophenol and TDE; cyclodiene insecticides such as aldrin, bromocyclen, chlorbicyclen, chlordane, chlordecone, dieldrin, dilor, endosulfan, endrin, HEOD, heptachlor, HHDN, isobenzan, isodrin, kelevan and mirex; organophosphate insecticides such as bromfenvinfos, chlorfenvinphos, crotoxyphos, dichlorvos, dicrotophos, dimethylvinphos, fospirate, heptenophos, methocrotophos, mevinphos, monocrotophos, naled, naftalofos, phosphamidon, propaphos, TEPP and tetrachlorvinphos; organothiophosphate insecticides such as dioxabenzofos, fosmethilan and phenthoate; aliphatic organothiophosphate insecticides such as acethion, amiton, cadusafos, chlorethoxyfos, chlormephos, demephion, demephion-O, demephion-S, demeton, demeton-O, demeton-S, demeton-methyl, demeton-O-methyl, demeton-S-methyl, demeton-S-methylsulphon, disulfoton, ethion, ethoprophos, IPSP, isothioate, malathion, methacrifos, oxydemeton-methyl, oxydeprofos, oxydisulfoton, phorate, sulfotep, terbufos and thiometon; aliphatic amide organothiophosphate insecticides such as amidithion, cyanthoate, dimethoate, ethoate-methyl, formothion, mecarbam, omethoate, prothoate, sophamide and vamidothion; oxime organothiophosphate insecticides such as chlorphoxim, phoxim and phoxim-methyl; heterocyclic organothiophosphate insecticides such as azamethiphos, coumaphos, coumithoate, dioxathion, endothion, menazon, morphothion, phosalone, pyraclofos, pyridaphenthion and quinothion; benzothiopyran organothiophosphate insecticides such as dithicrofos and thicrofos; benzotriazine organothiophosphate insecticides such as azinphos-ethyl and azinphos-methyl; isoindole organothiophosphate insecticides such as dialifos and phosmet; isoxazole organothiophosphate insecticides such as isoxathion and zolaprofos; pyrazolopyrimidine organothiophosphate insecticides such as chlorprazophos and pyrazophos; pyridine organothiophosphate insecticides such as chlorpyrifos and chlorpyrifos-methyl; pyrimidine organothiophosphate insecticides such as butathiofos, diazinon, etrimfos, lirimfos, pirimiphos-ethyl, pirimiphos-methyl, primidophos, pyrimitate and tebupirimfos; quinoxaline organothiophosphate insecticides such as quinalphos and quinalphos-methyl; thiadiazole organothiophosphate insecticides such as athidathion, lythidathion, methidathion and prothidathion; triazole organothiophosphate insecticides such as isazofos and triazophos; phenyl organothiophosphate insecticides such as azothoate, bromophos, bromophos-ethyl, carbophenothion, chlorthiophos, cyanophos, cythioate, dicapthon, dichlofenthion, etaphos, famphur, fenchlorphos, fenitrothion fensulfothion, fenthion, fenthion-ethyl, heterophos, jodfenphos, mesulfenfos, parathion, parathion-methyl, phenkapton, phosnichlor, profenofos, prothiofos, sulprofos, temephos, trichlormetaphos-3 and trifenofos; phosphonate insecticides such as butonate and trichlorfon; phosphonothioate insecticides such as mecarphon; phenyl ethylphosphonothioate insecticides such as fonofos and trichloronat; phenyl phenylphosphonothioate insecticides such as cyanofenphos, EPN and leptophos; phosphoramidate insecticides such as crufomate, fenamiphos, fosthietan, mephosfolan, phosfolan and pirimetaphos; phosphoramidothioate insecticides such as acephate, isocarbophos, isofenphos, methamidophos and propetamphos; phosphorodiamide insecticides such as dimefox, mazidox, mipafox and schradan; oxadiazine insecticides such as indoxacarb; phthalimide insecticides such as dialifos, phosmet and tetramethrin; pyrazole insecticides such as acetoprole, ethiprole, fipronil, pyrafluprole, pyriprole, tebufenpyrad, tolfenpyrad and vaniliprole; pyrethroid ester insecticides such as acrinathrin, allethrin, bioallethrin, barthrin, bifenthrin, bioethanomethrin, cyclethrin, cycloprothrin, cyfluthrin, beta-cyfluthrin, cyhalothrin, gamma-cyhalothrin, lambda-cyhalothrin, cypermethrin, alpha-cypermethrin, beta-cypermethrin, theta-cypermethrin, zeta-cypermethrin, cyphenothrin, deltamethrin, dimefluthrin, dimethrin, empenthrin, fenfluthrin, fenpirithrin, fenpropathrin, fenvalerate, esfenvalerate, flucythrinate, fluvalinate, tau-fluvalinate, furethrin, imiprothrin, metofluthrin, permethrin, biopermethrin, transpermethrin, phenothrin, prallethrin, profluthrin, pyresmethrin, resmethrin, bioresmethrin, cismethrin, tefluthrin, terallethrin, tetramethrin, tralomethrin and transfluthrin; pyrethroid ether insecticides such as etofenprox, flufenprox, halfenprox, protrifenbute and silafluofen; pyrimidinamine insecticides such as flufenerim and pyrimidifen; pyrrole insecticides such as chlorfenapyr; tetronic acid insecticides such as spirodiclofen, spiromesifen and spirotetramat; thiourea insecticides such as diafenthiuron; urea insecticides such as flucofuron and sulcofuron; and unclassified insecticides such as AKD-3088, closantel, crotamiton, cyflumetofen, E2Y45, EXD, fenazaflor, fenazaquin, fenoxacrim, fenpyroximate, FKI-1033, flubendiamide, HGW86, hydramethylnon, IKI-2002, isoprothiolane, malonoben, metaflumizone, metoxadiazone, nifluridide, NNI-9850, NNI-0101, pymetrozine, pyridaben, pyridalyl, Qcide, rafoxanide, rynaxypyr, SYJ-159, triarathene and triazamate and any combinations thereof.

Some of the fungicides that can be employed beneficially in combination with the compounds of the present invention include: 2-(thiocyanatomethylthio)-benzothiazole, 2-phenylphenol, 8-hydroxyquinoline sulfate, Ampelomyces, quisqualis, azaconazole, azoxystrobin, Bacillus subtilis, benalaxyl, benomyl, benthiavalicarb-isopropyl, benzylaminobenzene-sulfonate (BABS) salt, bicarbonates, biphenyl, bismerthiazol, bitertanol, blasticidin-S, borax, Bordeaux mixture, boscalid, bromuconazole, bupirimate, calcium polysulfide, captafol, captan, carbendazim, carboxin, carpropamid, carvone, chloroneb, chlorothalonil, chlozolinate, Coniothyrium minitans, copper hydroxide, copper octanoate, copper oxychloride, copper sulfate, copper sulfate (tribasic), cuprous oxide, cyazofamid, cyflufenamid, cymoxanil, cyproconazole, cyprodinil, dazomet, debacarb, diammonium ethylenebis-(dithiocarbamate), dichlofluanid, dichlorophen, diclocymet, diclomezine, dichloran, diethofencarb, difenoconazole, difenzoquat ion, diflumetorim, dimethomorph, dimoxystrobin, diniconazole, diniconazole-M, dinobuton, dinocap, diphenylamine, dithianon, dodemorph, dodemorph acetate, dodine, dodine free base, edifenphos, epoxiconazole, ethaboxam, ethoxyquin, etridiazole, famoxadone, fenamidone, fenarimol, fenbuconazole, fenfuram, fenhexamid, fenoxanil, fenpiclonil, fenpropidin, fenpropimorph, fentin, fentin acetate, fentin hydroxide, ferbam, ferimzone, fluazinam, fludioxonil, flumorph, fluopicolide, fluoroimide, fluoxastrobin, fluquinconazole, flusilazole, flusulfamide, flutolanil, flutriafol, folpet, formaldehyde, fosetyl, fosetyl-aluminium, fuberidazole, furalaxyl, furametpyr, guazatine, guazatine acetates, GY-81, hexachlorobenzene, hexaconazole, hymexazol, imazalil, imazalil sulfate, imibenconazole, iminoctadine, iminoctadine triacetate, iminoctadine tris(albesilate), ipconazole, iprobenfos, iprodione, iprovalicarb, isoprothiolane, kasugamycin, kasugamycin hydrochloride hydrate, kresoxim-methyl, mancopper, mancozeb, maneb, mepanipyrim, mepronil, mercuric chloride, mercuric oxide, mercurous chloride, metalaxyl, mefenoxam, metalaxyl-M, metam, metam-ammonium, metam-potassium, metam-sodium, metconazole, methasulfocarb, methyl iodide, methyl isothiocyanate, metiram, metominostrobin, metrafenone, mildiomycin, myclobutanil, nabam, nitrothal-isopropyl, nuarimol, octhilinone, ofurace, oleic acid (fatty acids), orysastrobin, oxadixyl, oxine-copper, oxpoconazole fumarate, oxycarboxin, pefurazoate, penconazole, pencycuron, pentachlorophenol, pentachlorophenyl laurate, penthiopyrad, phenylmercury acetate, phosphonic acid, phthalide, picoxystrobin, polyoxin B, polyoxins, polyoxorim, potassium bicarbonate, potassium hydroxyquinoline sulfate, probenazole, prochloraz, procymidone, propamocarb, propamocarb hydrochloride, propiconazole, propineb, proquinazid, prothioconazole, pyraclostrobin, pyrazophos, pyributicarb, pyrifenox, pyrimethanil, pyroquilon, quinoclamine, quinoxyfen, quintozene, Reynoutria sachalinensis extract, silthiofam, simeconazole, sodium 2-phenylphenoxide, sodium bicarbonate, sodium pentachlorophenoxide, spiroxamine, sulfur, SYP-Z071, tar oils, tebuconazole, tecnazene, tetraconazole, thiabendazole, thifluzamide, thiophanate-methyl, thiram, tiadinil, tolclofos-methyl, tolylfluanid, triadimefon, triadimenol, triazoxide, tricyclazole, tridemorph, trifloxystrobin, triflumizole, triforine, triticonazole, validamycin, vinclozolin, zineb, ziram, zoxamide, Candida oleophila, Fusarium oxysporum, Gliocladium spp., Phlebiopsis gigantean, Streptomyces griseoviridis, Trichoderma spp., (RS)—N-(3,5-dichlorophenyl)-2-(methoxymethyl)-succinimide, 1,2-dichloropropane, 1,3-dichloro-1,1,3,3-tetrafluoroacetone hydrate, 1-chloro-2,4-dinitronaphthalene, 1-chloro-2-nitropropane, 2-(2-heptadecyl-2-imidazolin-1-yl)ethanol, 2,3-dihydro-5-phenyl-1,4-dithi-ine 1,1,4,4-tetraoxide, 2-methoxyethylmercury acetate, 2-methoxyethylmercury chloride, 2-methoxyethylmercury silicate, 3-(4-chlorophenyl)-5-methylrhodanine, 4-(2-nitroprop-1-enyl)phenyl thiocyanateme: ampropylfos, anilazine, azithiram, barium polysulfide, Bayer 32394, benodanil, benquinox, bentaluron, benzamacril; benzamacril-isobutyl, benzamorf, binapacryl, bis(methylmercury) sulfate, bis(tributyltin) oxide, buthiobate, cadmium calcium copper zinc chromate sulfate, carbamorph, CECA, chlobenthiazone, chloraniformethan, chlorfenazole, chlorquinox, climbazole, copper bis(3-phenylsalicylate), copper zinc chromate, cufraneb, cupric hydrazinium sulfate, cuprobam, cyclafuramid, cypendazole, cyprofuram, decafentin, dichlone, dichlozoline, diclobutrazol, dimethirimol, dinocton, dinosulfon, dinoterbon, dipyrithione, ditalimfos, dodicin, drazoxolon, EBP, ESBP, etaconazole, etem, ethirim, fenaminosulf, fenapanil, fenitropan, fluotrimazole, furcarbanil, furconazole, furconazole-cis, furmecyclox, furophanate, glyodine, griseofulvin, halacrinate, Hercules 3944, hexylthiofos, ICIA0858, isopamphos, isovaledione, mebenil, mecarbinzid, metazoxolon, methfuroxam, methylmercury dicyandiamide, metsulfovax, milneb, mucochloric anhydride, myclozolin, N-3,5-dichlorophenyl-succinimide, N-3-nitrophenylitaconimide, natamycin, N-ethylmercurio-4-toluenesulfonanilide, nickel bis(dimethyldithiocarbamate), OCH, phenylmercury dimethyldithiocarbamate, phenylmercury nitrate, phosdiphen, prothiocarb; prothiocarb hydrochloride, pyracarbolid, pyridinitril, pyroxychlor, pyroxyfur, quinacetol; quinacetol sulfate, quinazamid, quinconazole, rabenzazole, salicylanilide, SSF-109, sultropen, tecoram, thiadifluor, thicyofen, thiochlorfenphim, thiophanate, thioquinox, tioxymid, triamiphos, triarimol, triazbutil, trichlamide, urbacid, XRD-563, and zarilamid, and any combinations thereof.

Some of the herbicides that can be employed in conjunction with the compounds of the present invention include: amide herbicides such as allidochlor, beflubutamid, benzadox, benzipram, bromobutide, cafenstrole, CDEA, chlorthiamid, cyprazole, dimethenamid, dimethenamid-P, diphenamid, epronaz, etnipromid, fentrazamide, flupoxam, fomesafen, halosafen, isocarbamid, isoxaben, napropamide, naptalam, pethoxamid, propyzamide, quinonamid and tebutam; anilide herbicides such as chloranocryl, cisanilide, clomeprop, cypromid, diflufenican, etobenzanid, fenasulam, flufenacet, flufenican, mefenacet, mefluidide, metamifop, monalide, naproanilide, pentanochlor, picolinafen and propanil; arylalanine herbicides such as benzoylprop, flampropand flamprop-M; chloroacetanilide herbicides such as acetochlor, alachlor, butachlor, butenachlor, delachlor, diethatyl, dimethachlor, metazachlor, metolachlor, S-metolachlor, pretilachlor, propachlor, propisochlor, prynachlor, terbuchlor, thenylchlor and xylachlor; sulfonanilide herbicides such as benzofluor, perfluidone, pyrimisulfan and profluazol; sulfonamide herbicides such as asulam, carbasulam, fenasulam and oryzalin; antibiotic herbicides such as bilanafos; benzoic acid herbicides such as chloramben, dicamba, 2,3,6-TBA and tricamba; pyrimidinyloxybenzoic acid herbicides such as bispyribac and pyriminobac; pyrimidinylthiobenzoic acid herbicides such as pyrithiobac; phthalic acid herbicides such as chlorthal; picolinic acid herbicides such as aminopyralid, clopyralid and picloram; quinolinecarboxylic acid herbicides such as quinclorac and quinmerac; arsenical herbicides such as cacodylic acid, CMA, DSMA, hexaflurate, MAA, MAMA, MSMA, potassium arsenite and sodium arsenite; benzoylcyclohexanedione herbicides such as mesotrione, sulcotrione, tefuryltrione and tembotrione; benzofuranyl alkylsulfonate herbicides such as benfuresate and ethofumesate; carbamate herbicides such as asulam, carboxazole chlorprocarb, dichlormate, fenasulam, karbutilate and terbucarb; carbanilate herbicides such as barban, BCPC, carbasulam, carbetamide, CEPC, chlorbufam, chlorpropham, CPPC, desmedipham, phenisopham, phenmedipham, phenmedipham-ethyl, propham and swep; cyclohexene oxime herbicides such as alloxydim, butroxydim, clethodim, cloproxydim, cycloxydim, profoxydim, sethoxydim, tepraloxydim and tralkoxydim; cyclopropylisoxazole herbicides such as isoxachlortole and isoxaflutole; dicarboximide herbicides such as benzfendizone, cinidon-ethyl, flumezin, flumiclorac, flumioxazin and flumipropyn; dinitroaniline herbicides such as benfluralin, butralin, dinitramine, ethalfluralin, fluchloralin, isopropalin, methalpropalin, nitralin, oryzalin, pendimethalin, prodiamine, profluralin and trifluralin; dinitrophenol herbicides such as dinofenate, dinoprop, dinosam, dinoseb, dinoterb, DNOC, etinofen and medinoterb; diphenyl ether herbicides such as ethoxyfen; nitrophenyl ether herbicides such as acifluorfen, aclonifen, bifenox, chlomethoxyfen, chlornitrofen, etnipromid, fluorodifen, fluoroglycofen, fluoronitrofen, fomesafen, furyloxyfen, halosafen, lactofen, nitrofen, nitrofluorfen and oxyfluorfen; dithiocarbamate herbicides such as dazomet and metam; halogenated aliphatic herbicides such as alorac, chloropon, dalapon, flupropanate, hexachloroacetone, iodomethane, methyl bromide, monochloroacetic acid, SMA and TCA; imidazolinone herbicides such as imazamethabenz, imazamox, imazapic, imazapyr, imazaquin and imazethapyr; inorganic herbicides such as ammonium sulfamate, borax, calcium chlorate, copper sulfate, ferrous sulfate, potassium azide, potassium cyanate, sodium azide, sodium chlorate and sulfuric acid; nitrile herbicides such as bromobonil, bromoxynil, chloroxynil, dichlobenil, iodobonil, ioxynil and pyraclonil; organophosphorus herbicides such as amiprofos-methyl, anilofos, bensulide, bilanafos, butamifos, 2,4-DEP, DMPA, EBEP, fosamine, glufosinate, glyphosate and piperophos; phenoxy herbicides such as bromofenoxim, clomeprop, 2,4-DEB, 2,4-DEP, difenopenten, disul, erbon, etnipromid, fenteracol and trifopsime; phenoxyacetic herbicides such as 4-CPA, 2,4-D, 3,4-DA, MCPA, MCPA-thioethyl and 2,4,5-T; phenoxybutyric herbicides such as 4-CPB, 2,4-DB, 3,4-DB, MCPB and 2,4,5-TB; phenoxypropionic herbicides such as cloprop, 4-CPP, dichlorprop, dichlorprop-P, 3,4-DP, fenoprop, mecopropand mecoprop-P; aryloxyphenoxypropionic herbicides such as chlorazifop, clodinafop, clofop, cyhalofop, diclofop, fenoxaprop, fenoxaprop-P, fenthiaprop, fluazifop, fluazifop-P, haloxyfop, haloxyfop-P, isoxapyrifop, metamifop, propaquizafop, quizalofop, quizalofop-P and trifop; phenylenediamine herbicides such as dinitramine and prodiamine; pyrazolyl herbicides such as benzofenap, pyrazolynate, pyrasulfotole, pyrazoxyfen, pyroxasulfone and topramezone; pyrazolylphenyl herbicides such as fluazolate and pyraflufen; pyridazine herbicides such as credazine, pyridafol and pyridate; pyridazinone herbicides such as brompyrazon, chloridazon, dimidazon, flufenpyr, metflurazon, norflurazon, oxapyrazon and pydanon; pyridine herbicides such as aminopyralid, cliodinate, clopyralid, dithiopyr, fluoroxypyr, haloxydine, picloram, picolinafen, pyriclor, thiazopyr and triclopyr; pyrimidinediamine herbicides such as iprymidam and tioclorim; quaternary ammonium herbicides such as cyperquat, diethamquat, difenzoquat, diquat, morfamquat and paraquat; thiocarbamate herbicides such as butylate, cycloate, di-allate, EPTC, esprocarb, ethiolate, isopolinate, methiobencarb, molinate, orbencarb, pebulate, prosulfocarb, pyributicarb, sulfallate, thiobencarb, tiocarbazil, tri-allate and vernolate; thiocarbonate herbicides such as dimexano, EXD and proxan; thiourea herbicides such as methiuron; triazine herbicides such as dipropetryn, triaziflam and trihydroxytriazine; chlorotriazine herbicides such as atrazine, chlorazine, cyanazine, cyprazine, eglinazine, ipazine, mesoprazine, procyazine, proglinazine, propazine, sebuthylazine, simazine, terbuthylazine and trietazine; methoxytriazine herbicides such as atraton, methometon, prometon, secbumeton, simeton and terbumeton; methylthiotriazine herbicides such as ametryn, aziprotryne, cyanatryn, desmetryn, dimethametryn, methoprotryne, prometryn, simetryn and terbutryn; triazinone herbicides such as ametridione, amibuzin, hexazinone, isomethiozin, metamitron and metribuzin; triazole herbicides such as amitrole, cafenstrole, epronaz and flupoxam; triazolone herbicides such as amicarbazone, bencarbazone, carfentrazone, flucarbazone, propoxycarbazone, sulfentrazone and thiencarbazone-methyl; triazolopyrimidine herbicides such as cloransulam, diclosulam, florasulam, flumetsulam, metosulam, penoxsulam and pyroxsulam; uracil herbicides such as butafenacil, bromacil, flupropacil, isocil, lenacil and terbacil; 3-phenyluracils; urea herbicides such as benzthiazuron, cumyluron, cycluron, dichloralurea, diflufenzopyr, isonoruron, isouron, methabenzthiazuron, monisouron and noruron; phenylurea herbicides such as anisuron, buturon, chlorbromuron, chloreturon, chlorotoluron, chloroxuron, daimuron, difenoxuron, dimefuron, diuron, fenuron, fluometuron, fluothiuron, isoproturon, linuron, methiuron, methyldymron, metobenzuron, metobromuron, metoxuron, monolinuron, monuron, neburon, parafluoron, phenobenzuron, siduron, tetrafluoron and thidiazuron; pyrimidinylsulfonylurea herbicides such as amidosulfuron, azimsulfuron, bensulfuron, chlorimuron, cyclosulfamuron, ethoxysulfuron, flazasulfuron, flucetosulfuron, flupyrsulfuron, foramsulfuron, halosulfuron, imazosulfuron, mesosulfuron, nicosulfuron, orthosulfamuron, oxasulfuron, primisulfuron, pyrazosulfuron, rimsulfuron, sulfometuron, sulfosulfuron and trifloxysulfuron; triazinylsulfonylurea herbicides such as chlorsulfuron, cinosulfuron, ethametsulfuron, iodosulfuron, metsulfuron, prosulfuron, thifensulfuron, triasulfuron, tribenuron, triflusulfuron and tritosulfuron; thiadiazolylurea herbicides such as buthiuron, ethidimuron, tebuthiuron, thiazafluoron and thidiazuron; and unclassified herbicides such as acrolein, allyl alcohol, azafenidin, benazolin, bentazone, benzobicyclon, buthidazole, calcium cyanamide, cambendichlor, chlorfenac, chlorfenprop, chlorflurazole, chlorflurenol, cinmethylin, clomazone, CPMF, cresol, ortho-dichlorobenzene, dimepiperate, endothal, fluoromidine, fluridone, fluorochloridone, flurtamone, fluthiacet, indanofan, methazole, methyl isothiocyanate, nipyraclofen, OCH, oxadiargyl, oxadiazon, oxaziclomefone, pentachlorophenol, pentoxazone, phenylmercury acetate, pinoxaden, prosulfalin, pyribenzoxim, pyriftalid, quinoclamine, rhodethanil, sulglycapin, thidiazimin, tridiphane, trimeturon, tripropindan and tritac. 

We claim:
 1. A compound of formula (I)

wherein A, B and D represent N; R¹ represents C₁-C₄ alkyl substituted with from one up to the maximum number of fluorine or chlorine atoms; R² represents Cl, CF₃, O(C₁-C₃ alkyl), NH(C₁-C₃ alkyl) or N(C₁-C₃ alkyl)₂ in which each of the C₁-C₃ alkyl groups is optionally substituted with from one up to the maximum number of fluorine atoms; R⁴ represents H, C₁-C₃ alkyl (optionally substituted with alkoxy, benzyloxy or —OC(O)R⁷), or CO₂R⁶; R⁵ represents H, C₁-C₃ alkyl (optionally substituted with C₁-C₃ alkoxy, F, CN or CO₂R), OH, C₁-C₃ alkoxy or CO₂R⁶, or R⁴ and R⁵ taken together represent —CH₂CH₂— or —C(O)CH₂—; R⁶ represents H or C₁-C₃ alkyl; R⁷ represents C₁-C₃ alkyl; W represents O or S; Ar represents a phenyl group substituted with one to four substituents independently selected from F, Cl, Br, I, NO₂, CN, SCF₃, SO₂CF₃, C₁-C₃ alkyl substituted with from one up to the maximum number of chlorine or fluorine atoms, or C₁-C₃ alkoxy optionally substituted with from one up to the maximum number of chlorine or fluorine atoms; or represents

and X and Y independently represent H, F, Cl, Br, I, NO₂, CN, SCF₃, SO₂CF₃, C₁-C₃ alkyl substituted with from one up to the maximum number of chlorine or fluorine atoms, or C₁-C₃ alkoxy optionally substituted with from one up to the maximum number of chlorine or fluorine atoms.
 2. A compound according to claim 1 wherein Ar represents


3. A compound according to claim 2 in which R¹ is CH₂CF₃.
 4. A compound according to claim 2 in which R² is OCH₂CF₃.
 5. A compound according to claim 2 in which W is O.
 6. A compound according to claim 2 in which R⁴ and R⁵ are independently H or CH₃.
 7. A compound according to claim 2 in which Ar represents


8. A compound according to claim 2 in which X is Br, Cl, CF₃ or OCF₃.
 9. A composition for controlling insects which comprises a compound of claim 1 in combination with a phytologically-acceptable carrier.
 10. A method of controlling insects which comprises applying to a locus where control is desired an insect-inactivating amount of a compound of claim
 1. 